Answer :
Final answer:
The sum of -356.1 + 258.6 is -97.5.
Explanation:
The sum of -356.1 + 258.6 is -97.5. When adding these numbers, we align the decimal points and add the digits in each place value. In this case, the digit in the tenths place cancels out, and when we subtract the digits in the ones place, we get -9. Finally, the digit in the hundreds place is -7. Therefore, the sum is -97.5.
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